updates to trigJetMonitor, monGroups and additions to express stream

Updates to TrigJetMonitor: https://its.cern.ch/jira/browse/ATR-28650

• No longer monitoring large-R jFEX outputs (L1_jFexLRJetRoI folder removed)
• No longer looping over monitored chains to add the corresponding PhI chain: this is completely defined by mongroups now.
• Other updates include: new binning for efficiency monitoring of high-Et chains, new efficiency curves and reference triggers in effmon set to PhI chains.

Updates to Physics menu:

• Updates to jet monGroups (including removal of jLJ chains)
• 2 new chains added to express stream (+1 replacing the corresponding legacy)

@xingguo @pakontax